astronomy

S. M. Ullah

S. M. Ullah is a astronomy topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand S. M. Ullah rather than just read about it. In short: Shah Mohammad Ullah (Bengali: শাহ মোঃ উললাহ), is a Bangladeshi-Austrian soil scientist and environmentalist, who primarily researches arsenic contamination in the air and water. The former chairman of the Department of Soil, Water and Environment at the University of Dhaka, the oldest department in the country, he led projects in the field of heavy metal contamination in crops, in collaboration with the Seibersdorf…

Key takeaways

S. M. Ullah belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect S. M. Ullah to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of S. M. Ullah from memory before moving on to harder problems.

Reference excerpt

Shah Mohammad Ullah (Bengali: শাহ মোঃ উললাহ), is a Bangladeshi-Austrian soil scientist and environmentalist, who primarily researches arsenic contamination in the air and water. The former chairman of the Department of Soil, Water and Environment at the University of Dhaka, the oldest department in the country, he led projects in the field of heavy metal contamination in crops, in collaboration with the Seibersdorf Research Center, Austria and the Ministry of Science and Technology, Government of Bangladesh.

Background As a full professor of Dhaka University, Ullah completed his BSc from the Dhaka University, and then his MSc and D.Agri from the University of Natural Resources and Life Sciences, Vienna. He was made chairman before the 60th Anniversary of the Department, predating the country's age. At DU, he was both a colleague and successor of Iajuddin Ahmed. Concerned with the national water situation, Ullah presided over the 2011 World Water Day event in Bangladesh, hosting the Health Minister who sought to improve access to safe drinking water. He predicted that the entry of metals into the food chain through plant uptake might cause health hazards and also environmental problems in 1999. In 2010, Dhaka, the capital of Bangladesh saw a large number of deaths among the trees growing in the city according to The Daily Star. Ullah said that the soil problems or air pollution might be responsible for the deaths of the trees, especially if the level of metals such as copper, nickel, lead, cadmium and zinc goes up in the soil, he said. Besides, a rise in sulphuric, nitric, hydrochloric and other types of acid in the air could also cause the leaves of trees to decay, thereby killing them. He pointed out that trees grow under these constraints in industrial areas where air remains highly polluted. Furthermore, he added that the soil used for filling up lowlands for the Bashundhara Housing Project should be analysed to find the reasons behind it. He was also a freedom fighter in the 1971 Liberation War against Pakistan.

Selected publications Monira, B.; S.M. Ullah, A. S. Mollah and N. Chowdhury (2005). "137Cs-Uptake into Wheat (Triticum Vulgare) Plants from Five Representative Soils of Bangladesh". Environmental Monitoring and Assessment. 104 (1–3): 59–69. Bibcode:2005EMnAs.104...59M. doi:10.1007/s10661-005-1601-0. PMID 15931978. S2CID 21882349. Chamon, A. S.; M. H. Gerzabek, M. N. Mondol, S.M. Ullah, M. Rahman & W. E. H. Blum (2005). "Influence of Soil Amendments on Heavy Metal Accumulation in Crops on Polluted Soils of Bangladesh". Communications in Soil Science and Plant Analysis. 36 (7–8): 907–924. Bibcode:2005CSSPA..36..907C. doi:10.1081/CSS-200049472. S2CID 95104215.{{cite journal}}: CS1 maint: multiple names: authors list (link) Chamon, A. S.; M. H. Gerzabek, M. N. Mondol, S.M. Ullah, M. Rahman & W. E. H. Blum (2005). "Influence of Cereal Varieties and Site Conditions on Heavy Metal Accumulations in Cereal Crops on Polluted Soils of Bangladesh". Communications in Soil Science and Plant Analysis. 36 (7–8): 889–906. Bibcode:2005CSSPA..36..907C. doi:10.1081/CSS-200049472. S2CID 95104215.{{cite journal}}: CS1 maint: multiple names: authors list (link) Salam, Abdus; Heidi Bauer, Karin Kassin, Shah Mohammad Ullah and Hans Puxbaum (2003). "Aerosol chemical characteristics of an island site in the Bay of Bengal (Bhola – Bangladesh)". Journal of Environmental Monitoring. 5 (3): 483–490. doi:10.1039/B212521H. PMID 12833993.{{cite journal}}: CS1 maint: multiple names: authors list (link) Islam, A.; Ullah, S.M. (1973). "Chemistry of submerged soils and growth and yield of rice – II. Effect of additional application of fertilizers on soil at field capacity". Plant and Soil. 39 (3): 567–579. Bibcode:1973PlSoi..39..567I. doi:10.1007/BF00264174. ISSN 0032-079X. S2CID 29262734. Danneberg, O. H.; Ullah, S.M. (1982). "Chromatographische Unterscheidung von Huminstoffen und Nichthuminstoffen aus Schwarzerdehumus". Journal of Plant Nutrition and Soil Science (in German). 145 (6): 526–538. doi:10.1002/jpln.19821450604. Mollah, A.S.; Ullah, S.M. (1998). "Determination of distribution coefficient of 137Cs and 90Sr in soil from AERE, Savar". Waste Management. 18 (4): 287–291. Bibcode:1998WaMan..18..287M. doi:10.1016/S0956-053X(98)00031-2. Salam, Abdus; Heidi Bauer; Karin Kassin; Shah Mohammad Ullah; Hans Puxbau (2003). "Aerosol chemical characteristics of a mega-city in Southeast Asia (Dhaka–Bangladesh)". Atmospheric Environment. 37 (18): 2517–2528. Bibcode:2003AtmEn..37.2517S. doi:10.1016/S1352-2310(03)00135-3.

See also Biogeochemistry Environmental radioactivity Heavy Metal Accumulation in Soils Soil Acidity Organic Pollutant

References

External links Shah Mohammad Ullah, Profile at University of Dhaka Shah Mohammad Ullah at ScientificCommons Shah Mohammad Ullah at DOAJ

Worked examples

Example 1 — a first encounter with S. M. Ullah

Start with the simplest possible case. Write down what S. M. Ullah claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to S. M. Ullah before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about S. M. Ullah ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of S. M. Ullah

In research: S. M. Ullah appears in astronomy research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses S. M. Ullah in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: S. M. Ullah is common in secondary-school and first-year university syllabi. It links to neighbouring topics Bangladeshi scientists, Bengali scientists, Living people, so understanding it makes those chapters shorter.
In everyday life: Look for S. M. Ullah outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study S. M. Ullah in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what S. M. Ullah means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain S. M. Ullah out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is S. M. Ullah in simple terms?

Why does S. M. Ullah matter?

Because it connects several astronomy ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study S. M. Ullah?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on S. M. Ullah.